package net.lcheng.sellerCenter.controller;

import com.fasterxml.jackson.databind.ObjectMapper;
import net.lcheng.commons.utils.UploadFileHelper;
import net.lcheng.commons.utils.UploadFileResult;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.springframework.core.io.support.PropertiesLoaderUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import org.springframework.web.multipart.support.DefaultMultipartHttpServletRequest;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.*;

//import org.codehaus.jackson.map.ObjectMapper;

@RestController
public class UploadController {
	private static final ObjectMapper objectMapper = new ObjectMapper();
	private PrintWriter writer = null;

	@ResponseBody
	@SuppressWarnings("rawtypes")
	@RequestMapping(value = "/file_upload", method = RequestMethod.POST)
	public void fileUpload(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException, FileUploadException {
		ServletContext application = request.getSession().getServletContext();
//		String savePath = application.getRealPath("/") + "attached/";

		// 文件保存目录URL
//		String saveUrl = request.getContextPath() + "/attached/";

		// 定义允许上传的文件扩展名
		HashMap<String, String> extMap = new HashMap<String, String>();
		extMap.put("image", "gif,jpg,jpeg,png,bmp");
		extMap.put("flash", "swf,flv");
		extMap.put("media", "swf,flv,mp3,wav,wma,wmv,mid,avi,mpg,asf,rm,rmvb");
		extMap.put("file", "doc,docx,xls,xlsx,ppt,htm,html,txt,zip,rar,gz,bz2");

		// 最大文件大小
		long maxSize = 1000000;

		response.reset();
		response.setCharacterEncoding("UTF-8");
		response.setContentType("text/html");
		writer = response.getWriter();
		// writer.println(json); //想办法把map转成json

		if (!ServletFileUpload.isMultipartContent(request)) {
			writer.println(objectMapper.writeValueAsString(getError("请选择文件。")));
			return;

		}
        String dirName = request.getParameter("dir");
        if (dirName == null) {
            dirName = "image";
        }

		/*// 检查目录
		File uploadDir = new File(savePath);
		if (!uploadDir.isDirectory()) {

			writer.println(objectMapper.writeValueAsString(getError("上传目录不存在。" + uploadDir.toString())));
			uploadDir.mkdir();
			return;
		}
		// 检查目录写权限
		if (!uploadDir.canWrite()) {
			writer.println(objectMapper.writeValueAsString(getError("上传目录没有写权限。")));
			return;
		}

		String dirName = request.getParameter("dir");
		if (dirName == null) {
			dirName = "image";
		}
		if (!extMap.containsKey(dirName)) {
			writer.println(objectMapper.writeValueAsString(getError("目录名不正确。")));
			return;
		}*/
		/*// 创建文件夹
		savePath += dirName + "/";
		saveUrl += dirName + "/";
		File saveDirFile = new File(savePath);
		if (!saveDirFile.exists()) {
			saveDirFile.mkdirs();
		}
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
		String ymd = sdf.format(new Date());
		savePath += ymd + "/";
		saveUrl += ymd + "/";
		File dirFile = new File(savePath);
		if (!dirFile.exists()) {
			dirFile.mkdirs();
		}*/

		FileItemFactory factory = new DiskFileItemFactory();
		ServletFileUpload upload = new ServletFileUpload(factory);
		upload.setHeaderEncoding("UTF-8");

		DefaultMultipartHttpServletRequest mrequest = (DefaultMultipartHttpServletRequest) request;

		Map map = mrequest.getFileMap();
		Collection<MultipartFile> c = map.values();
		Iterator it = c.iterator();

		List items = upload.parseRequest(request);
		Iterator itr = c.iterator();
		for (; it.hasNext();) {

			CommonsMultipartFile file = (CommonsMultipartFile) it.next();

			if (!file.isEmpty()) {
				long fileSize = file.getSize();
				String fileName = file.getOriginalFilename();
				String contentType = file.getContentType();
				String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase();

				if (fileSize > maxSize) {
					writer.println(objectMapper.writeValueAsString(getError("上传文件大小超过限制。")));
					// out.println(getError("上传文件大小超过限制100M。"));
					return;
				}
				if (!Arrays.<String> asList(extMap.get(dirName).split(",")).contains(fileExt)) {
					// out.println(getError("上传文件扩展名是不允许的扩展名。\n只允许" +
					// extMap.get(dirName) + "格式。"));
					writer.println(objectMapper
							.writeValueAsString(getError("上传文件扩展名是不允许的扩展名。\n只允许" + extMap.get(dirName) + "格式。")));
					return;
				}

				/*FileItem item = null;
				SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
				String newFileName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;

				File uploadedFile = new File(savePath, newFileName);
                file.transferTo(uploadedFile);

//                CommonsMultipartFile cf= (CommonsMultipartFile)myfile; //这个myfile是MultipartFile的
                DiskFileItem fi = (DiskFileItem)file.getFileItem();
                File file1 = fi.getStoreLocation();*/

                /**上传到服务器*/
//                CloseableHttpClient httpClient = HttpClients.createDefault();
//                String URL = "http://120.76.114.76/mom-files/file_upload";
//                HttpPost httppost = new HttpPost(URL);
//                MultipartEntity entity = new MultipartEntity();
//                entity.addPart("title", new StringBody(uploadedFile.getName(), Charset.forName("UTF-8")));
////                File myFile = new File(Environment.getExternalStorageDirectory(), file);
//                FileBody fileBody = new FileBody(file1);
//
//                entity.addPart("file", fileBody);
//                httppost.setEntity(entity);
//
//                httpClient.execute(httppost);
//                httppost.getParams().setParameter("project", id);

				Properties properties = PropertiesLoaderUtils.loadAllProperties("config.properties");
				String uploadUrl = properties.getProperty("uploadUrl");
                UploadFileResult uploadResult = UploadFileHelper.uploadFileWithHttpMime(uploadUrl,file);

				/***上传到本地
				try {
					File uploadedFile = new File(savePath, newFileName);
					file.transferTo(uploadedFile);
				} catch (Exception e) {
					writer.println(objectMapper.writeValueAsString(getError("上传文件失败。")));
					// out.println(getError(“上传文件失败。”));
					return;
				}*/

				// JSONObject obj = new JSONObject();
				// obj.put(“error”, 0);
				// obj.put(“url”, saveUrl + newFileName);
				// obj.put(“title”, fileName);
				// System.out.println(fileName);
				// out.println(obj.toJSONString());
                if(uploadResult!=null) {
                    Map<String, Object> msg = new HashMap<String, Object>();
                    msg.put("error", uploadResult.getError());
                    msg.put("url", uploadResult.getUrl());
                    writer.println(objectMapper.writeValueAsString(msg));
                }else{
                    writer.println(objectMapper.writeValueAsString(getError("服务器错误")));
                }
				return;

			} else {
				writer.println(objectMapper.writeValueAsString(getError("不可以上传空文件。")));
				// out.println(getError(“不可以上传空文件！”));
				return;
			}

		}
		// while (itr.hasNext()) {
		// FileItem item = (FileItem) itr.next();
		// String fileName = item.getName();
		// if (!item.isFormField()) {
		// // 检查文件大小
		// if (item.getSize() > maxSize) {
		// writer.println(objectMapper.writeValueAsString(getError("上传文件大小超过限制。")));
		// }
		// // 检查扩展名
		// String fileExt = fileName.substring(
		// fileName.lastIndexOf(".") + 1).toLowerCase();
		// if (!Arrays.<String> asList(extMap.get(dirName).split(","))
		// .contains(fileExt)) {
		// writer.println(objectMapper.writeValueAsString(getError("上传文件扩展名是不允许的扩展名。\n只允许"+
		// extMap.get(dirName) + "格式。")));
		// return;
		// }
		//
		// SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
		// String newFileName = df.format(new Date()) + "_"
		// + new Random().nextInt(1000) + "." + fileExt;
		// try {
		// File uploadedFile = new File(savePath, newFileName);
		// item.write(uploadedFile);
		// } catch (Exception e) {
		// writer.println(objectMapper.writeValueAsString(getError("上传文件失败。")));
		// }
		//
		// Map<String, Object> msg = new HashMap<String, Object>();
		// msg.put("error", 0);
		// msg.put("url", saveUrl + newFileName);
		// writer.println(objectMapper.writeValueAsString(msg));
		// return;
		// }
		// }
		return;
	}



	private Map<String, Object> getError(String message) {
		Map<String, Object> msg = new HashMap<String, Object>();
		msg.put("error", 1);
		msg.put("message", message);
		return msg;
	}

	@SuppressWarnings({ "unchecked", "rawtypes" })
	@RequestMapping(value = "/file_manager", method = RequestMethod.GET)
	public void fileManager(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		ServletContext application = request.getSession().getServletContext();
		ServletOutputStream out = response.getOutputStream();
		// ¸ùÄ¿Â¼Â·¾¶£¬¿ÉÒÔÖ¸¶¨¾ø¶ÔÂ·¾¶£¬±ÈÈç /var/www/attached/
		String rootPath = application.getRealPath("/") + "attached/";
		// ¸ùÄ¿Â¼URL£¬¿ÉÒÔÖ¸¶¨¾ø¶ÔÂ·¾¶£¬±ÈÈç http://www.yoursite.com/attached/
		String rootUrl = request.getContextPath() + "/attached/";
		// Í¼Æ¬À©Õ¹Ãû
		String[] fileTypes = new String[] { "gif", "jpg", "jpeg", "png", "bmp" };

		String dirName = request.getParameter("dir");
		if (dirName != null) {
			if (!Arrays.<String> asList(new String[] { "image", "flash", "media", "file" }).contains(dirName)) {
				out.println("Invalid Directory name.");
				return;
			}
			rootPath += dirName + "/";
			rootUrl += dirName + "/";
			File saveDirFile = new File(rootPath);
			if (!saveDirFile.exists()) {
				saveDirFile.mkdirs();
			}
		}
		// ¸ù¾Ýpath²ÎÊý£¬ÉèÖÃ¸÷Â·¾¶ºÍURL
		String path = request.getParameter("path") != null ? request.getParameter("path") : "";
		String currentPath = rootPath + path;
		String currentUrl = rootUrl + path;
		String currentDirPath = path;
		String moveupDirPath = "";
		if (!"".equals(path)) {
			String str = currentDirPath.substring(0, currentDirPath.length() - 1);
			moveupDirPath = str.lastIndexOf("/") >= 0 ? str.substring(0, str.lastIndexOf("/") + 1) : "";
		}

		// ÅÅÐòÐÎÊ½£¬name or size or type
		String order = request.getParameter("order") != null ? request.getParameter("order").toLowerCase() : "name";

		// ²»ÔÊÐíÊ¹ÓÃ..ÒÆ¶¯µ½ÉÏÒ»¼¶Ä¿Â¼
		if (path.indexOf("..") >= 0) {
			out.println("Access is not allowed.");
			return;
		}
		// ×îºóÒ»¸ö×Ö·û²»ÊÇ/
		if (!"".equals(path) && !path.endsWith("/")) {
			out.println("Parameter is not valid.");
			return;
		}
		// Ä¿Â¼²»´æÔÚ»ò²»ÊÇÄ¿Â¼
		File currentPathFile = new File(currentPath);
		if (!currentPathFile.isDirectory()) {
			out.println("Directory does not exist.");
			return;
		}
		// ±éÀúÄ¿Â¼È¡µÄÎÄ¼þÐÅÏ¢
		List<Hashtable> fileList = new ArrayList<Hashtable>();
		if (currentPathFile.listFiles() != null) {
			for (File file : currentPathFile.listFiles()) {
				Hashtable<String, Object> hash = new Hashtable<String, Object>();
				String fileName = file.getName();
				if (file.isDirectory()) {
					hash.put("is_dir", true);
					hash.put("has_file", (file.listFiles() != null));
					hash.put("filesize", 0L);
					hash.put("is_photo", false);
					hash.put("filetype", "");
				} else if (file.isFile()) {
					String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase();
					hash.put("is_dir", false);
					hash.put("has_file", false);
					hash.put("filesize", file.length());
					hash.put("is_photo", Arrays.<String> asList(fileTypes).contains(fileExt));
					hash.put("filetype", fileExt);
				}
				hash.put("filename", fileName);
				hash.put("datetime", new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(file.lastModified()));
				fileList.add(hash);
			}
		}

		if ("size".equals(order)) {
			Collections.sort(fileList, new SizeComparator());
		} else if ("type".equals(order)) {
			Collections.sort(fileList, new TypeComparator());
		} else {
			Collections.sort(fileList, new NameComparator());
		}
		Map<String, Object> msg = new HashMap<String, Object>();
		msg.put("moveup_dir_path", moveupDirPath);
		msg.put("current_dir_path", currentDirPath);
		msg.put("current_url", currentUrl);
		msg.put("total_count", fileList.size());
		msg.put("file_list", fileList);
		response.setContentType("application/json; charset=UTF-8");
		String msgStr = objectMapper.writeValueAsString(msg);
		out.println(msgStr);
	}

	@SuppressWarnings("rawtypes")
	class NameComparator implements Comparator {
		public int compare(Object a, Object b) {
			Hashtable hashA = (Hashtable) a;
			Hashtable hashB = (Hashtable) b;
			if (((Boolean) hashA.get("is_dir")) && !((Boolean) hashB.get("is_dir"))) {
				return -1;
			} else if (!((Boolean) hashA.get("is_dir")) && ((Boolean) hashB.get("is_dir"))) {
				return 1;
			} else {
				return ((String) hashA.get("filename")).compareTo((String) hashB.get("filename"));
			}
		}
	}

	@SuppressWarnings("rawtypes")
	class SizeComparator implements Comparator {
		public int compare(Object a, Object b) {
			Hashtable hashA = (Hashtable) a;
			Hashtable hashB = (Hashtable) b;
			if (((Boolean) hashA.get("is_dir")) && !((Boolean) hashB.get("is_dir"))) {
				return -1;
			} else if (!((Boolean) hashA.get("is_dir")) && ((Boolean) hashB.get("is_dir"))) {
				return 1;
			} else {
				if (((Long) hashA.get("filesize")) > ((Long) hashB.get("filesize"))) {
					return 1;
				} else if (((Long) hashA.get("filesize")) < ((Long) hashB.get("filesize"))) {
					return -1;
				} else {
					return 0;
				}
			}
		}
	}

	@SuppressWarnings("rawtypes")
	class TypeComparator implements Comparator {
		public int compare(Object a, Object b) {
			Hashtable hashA = (Hashtable) a;
			Hashtable hashB = (Hashtable) b;
			if (((Boolean) hashA.get("is_dir")) && !((Boolean) hashB.get("is_dir"))) {
				return -1;
			} else if (!((Boolean) hashA.get("is_dir")) && ((Boolean) hashB.get("is_dir"))) {
				return 1;
			} else {
				return ((String) hashA.get("filetype")).compareTo((String) hashB.get("filetype"));
			}
		}
	}
}
